--- /dev/null
+<?php
+
+namespace DrupalCodeGenerator\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Formatter\OutputFormatterStyle;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ChoiceQuestion;
+
+/**
+ * Implements generate command.
+ */
+class Navigation extends Command {
+
+ /**
+ * Menu tree.
+ *
+ * @var array
+ */
+ protected $menuTree;
+
+ /**
+ * Name of the generator to execute.
+ *
+ * @var string
+ */
+ protected $generatorName;
+
+ /**
+ * Command labels.
+ *
+ * @var array
+ */
+ protected $labels = [
+ 'd7' => 'Drupal 7',
+ 'd8' => 'Drupal 8',
+ ];
+
+ /**
+ * Aliases for some sub-menus.
+ *
+ * @var array
+ */
+ protected $defaultAliases = [
+ 'service' => 'd8:service',
+ 'plugin' => 'd8:plugin',
+ 'theme' => 'd8:theme',
+ 'module' => 'd8:module',
+ 'form' => 'd8:form',
+ 'test' => 'd8:test',
+ 'yml' => 'd8:yml',
+ 'links' => 'd8:yml:links',
+ ];
+
+ /**
+ * Constructs menu command.
+ *
+ * @param \DrupalCodeGenerator\Command\GeneratorInterface[] $commands
+ * List of registered commands.
+ */
+ public function __construct(array $commands) {
+ parent::__construct();
+
+ // Initialize the menu structure.
+ $this->menuTree = [];
+ $aliases = array_keys($this->defaultAliases);
+
+ // Build aliases for the navigation based on command namespaces.
+ foreach ($commands as $command) {
+ $command_name = $command->getName();
+ $sub_names = explode(':', $command_name);
+
+ $this->arraySetNestedValue($this->menuTree, $sub_names, TRUE);
+
+ // The last sub-name is actual command name so it cannot be used as an
+ // alias for navigation command.
+ $last_sub_name = array_pop($sub_names);
+
+ // Collect command labels.
+ if ($label = $command->getLabel()) {
+ $this->labels[$last_sub_name] = $label;
+ }
+
+ // We cannot use $application->getNamespaces() here because the
+ // application is not available at this point.
+ $alias = '';
+ foreach ($sub_names as $sub_name) {
+ $alias = $alias ? $alias . ':' . $sub_name : $sub_name;
+ $aliases[] = $alias;
+ }
+ }
+
+ $this->setAliases(array_unique($aliases));
+ $this->recursiveKsort($this->menuTree);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getUsages() {
+ return ['<generator>'];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function configure() {
+ $this
+ ->setName('navigation')
+ ->setDescription('Provides an interactive menu to select generator')
+ ->setHelp('Run `dcg list` to check out all available generators.')
+ ->setHidden(TRUE)
+ ->addOption(
+ 'directory',
+ '-d',
+ InputOption::VALUE_OPTIONAL,
+ 'Working directory'
+ )
+ ->addOption(
+ 'answers',
+ '-a',
+ InputOption::VALUE_OPTIONAL,
+ 'Default JSON formatted answers'
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function interact(InputInterface $input, OutputInterface $output) {
+ $style = new OutputFormatterStyle('black', 'cyan', []);
+ $output->getFormatter()->setStyle('title', $style);
+
+ $command_name = $input->getFirstArgument();
+
+ // Before version 3.3.6 of Symfony console getFistArgument returned default
+ // command name.
+ $command_name = $command_name == 'navigation' ? NULL : $command_name;
+
+ if (isset($this->defaultAliases[$command_name])) {
+ $command_name = $this->defaultAliases[$command_name];
+ }
+
+ $menu_trail = $command_name ? explode(':', $command_name) : [];
+
+ $this->generatorName = $this->selectGenerator($input, $output, $menu_trail);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function execute(InputInterface $input, OutputInterface $output) {
+
+ if (!$this->generatorName) {
+ return 0;
+ }
+
+ // Run the generator.
+ return $this->getApplication()
+ ->find($this->generatorName)
+ ->run($input, $output);
+ }
+
+ /**
+ * Returns a generator selected by the user from a multilevel console menu.
+ *
+ * @param \Symfony\Component\Console\Input\InputInterface $input
+ * Input instance.
+ * @param \Symfony\Component\Console\Output\OutputInterface $output
+ * Output instance.
+ * @param array $menu_trail
+ * Menu trail.
+ *
+ * @return string|null
+ * Generator name or null if user decided to exit the navigation.
+ */
+ protected function selectGenerator(InputInterface $input, OutputInterface $output, array $menu_trail) {
+
+ // Narrow down menu tree.
+ $active_menu_tree = $this->menuTree;
+ foreach ($menu_trail as $active_menu_item) {
+ $active_menu_tree = $active_menu_tree[$active_menu_item];
+ }
+
+ // The $active_menu_tree can be either an array of menu items or TRUE if the
+ // user reached the final menu point.
+ if ($active_menu_tree === TRUE) {
+ return implode(':', $menu_trail);
+ }
+
+ $sub_menu_labels = $command_labels = [];
+ foreach ($active_menu_tree as $menu_item => $subtree) {
+ if (is_array($subtree)) {
+ $sub_menu_labels[$menu_item] = $this->createMenuItemLabel($menu_item, TRUE);
+ }
+ else {
+ $command_labels[$menu_item] = $this->createMenuItemLabel($menu_item, FALSE);
+ }
+ }
+ asort($sub_menu_labels);
+ asort($command_labels);
+
+ // Generally the choices array consists of the following parts:
+ // - Reference to the parent menu level.
+ // - Sorted list of nested menu levels.
+ // - Sorted list of commands.
+ $choices = ['..' => '..'] + $sub_menu_labels + $command_labels;
+ $question = new ChoiceQuestion('<title> Select generator: </title>', array_values($choices));
+ $question->setPrompt(count($choices) <= 10 ? ' ➤➤➤ ' : ' ➤➤➤➤ ');
+
+ $answer_label = $this->getHelper('question')->ask($input, $output, $question);
+ $answer = array_search($answer_label, $choices);
+
+ if ($answer == '..') {
+ // Exit the application if the user selected zero on the top menu level.
+ if (count($menu_trail) == 0) {
+ return NULL;
+ }
+ // Decrease menu level.
+ array_pop($menu_trail);
+ }
+ else {
+ // Increase menu level.
+ $menu_trail[] = $answer;
+ }
+
+ return $this->selectGenerator($input, $output, $menu_trail);
+ }
+
+ /**
+ * Creates a human readable label for a given menu item.
+ *
+ * @param string $menu_item
+ * Machine name of the menu item.
+ * @param bool $comment
+ * A boolean indicating that the label should be wrapped with comment tag.
+ *
+ * @return string
+ * The menu label.
+ */
+ protected function createMenuItemLabel($menu_item, $comment) {
+ $label = isset($this->labels[$menu_item]) ?
+ $this->labels[$menu_item] : str_replace(['-', '_'], ' ', ucfirst($menu_item));
+ return $comment ? "<comment>$label</comment>" : $label;
+ }
+
+ /**
+ * Sort multi-dimensional array by keys.
+ *
+ * @param array $array
+ * An array being sorted.
+ *
+ * @return array
+ * Sorted array.
+ */
+ protected function recursiveKsort(array &$array) {
+ foreach ($array as &$value) {
+ if (is_array($value)) {
+ $this->recursiveKsort($value);
+ }
+ }
+ return ksort($array);
+ }
+
+ /**
+ * Sets a value in a nested array with variable depth.
+ *
+ * @param array $array
+ * A reference to the array to modify.
+ * @param array $parents
+ * An array of parent keys, starting with the outermost key.
+ * @param mixed $value
+ * The value to set.
+ *
+ * @see https://api.drupal.org/api/drupal/includes!common.inc/function/drupal_array_set_nested_value/7
+ */
+ protected function arraySetNestedValue(array &$array, array $parents, $value) {
+ $ref = &$array;
+ foreach ($parents as $parent) {
+ if (isset($ref) && !is_array($ref)) {
+ $ref = [];
+ }
+ $ref = &$ref[$parent];
+ }
+ if (!isset($ref)) {
+ $ref = $value;
+ }
+ }
+
+}
projects / yaffs-website / blobdiff